• Investor Gerhard Andlinger has sold his penthouse at the Time Warner Center for $37.5 million, making it the biggest residential deal the city has seen in nearly a year. Not that this should necessarily be interpreted as a sign the real estate market is back. The 8,300-square-foot apartment, which was sold to an anonymous buyer, had been listed for $65 million when it first hit the market last year. [NYO]
• Keiko Ibi, the Tokyo-born filmmaker who won an Oscar her 1999 documentary The Personals, has put her condo at 15 Central Park West back on the market less than two years after purchasing it for $1.8 million. The one-bedroom is now listed for $3.75 million. [Cityfile, BHS]
• German-born billionaire Juergen Friedrich has taken $10.5 million off the price of his 18,000-square-foot Southampton manse. The Grosvenor Atterbury-designed home, which went on the market for $67 million last year, is now priced at $49.5 million. [Curbed Hamptons, Corcoran]

• Director Stephen Daldry has reportedly gone into contract to buy a red-brick townhouse in Chelsea with an asking price of "just under $5 million," while British architect Lord Norman Foster has picked up the apartment next door to the one he already owns at 912 Fifth Avenue for $6.7 million. [NYM]
• Markus Kiersztan, the owner of MP Creative and Uniqlo's creative director in the United States, has paid $1.8 million for a three-bedroom loft at 10 Leonard Street. [Cityfile]